🔍 Key Concepts

• Oil Record Book purpose under MARPOL and 33 CFR/46 CFR • What types of operations must be recorded (e.g., oil transfer, discharge, ballasting/cleaning of tanks) • Difference between operational events and routine data (like daily soundings or fuel properties)

💭 Think About

• Which of these choices describes a specific oil-related operation or event where pollution risk is involved, rather than just general monitoring data? • Think about when authorities would need a documented trail to check that oil or oily mixtures were handled properly at sea. • Which activity, if done improperly, could directly lead to an illegal oil discharge and therefore must be carefully recorded?

✅ Before You Answer

• Verify which entries are required in the Oil Record Book under MARPOL/33 CFR, especially for oil discharges or tank operations. • Check whether the Oil Record Book is meant for everyday inventory details (soundings, fuel properties, consumption) or for specific shipboard operations involving oil and oily mixtures. • Confirm which option involves ballast or cleaning water associated with oil fuel tanks, and whether such operations are tracked for pollution control.